Trichromatic dyeing process

ABSTRACT

The present invention relates to a process for the trichromatic dyeing or printing of natural or synthetic polyamide fibres or such fibres as contain polyamide with dye mixtures and also to such dye mixtures and polyamide fibres dyed or printed therewith.

[0001] The present invention relates to a process for the trichromaticdyeing or printing of natural or synthetic polyamide fibres or suchfibres as contain polyamide with dye mixtures and also to such dyemixtures and polyamide fibres dyed or printed therewith.

[0002] Trichromatic describes the additive colour mixing of suitableyellow- or orange-, red- and blue-dyeing dyes with which any desiredshade in the visible spectrum can be obtained by suitably selecting theamount ratios for the dyes.

[0003] Trichromatic dyeing is well known from the literature for variousdye classes, for example from EP 83299, DE 2623178, EP 226982 and EP808940.

[0004] Optimum trichromatic performance of any yellow, red and blue dyemixture is crucially dependent on the neutral affinity and migrationcharacteristics. Dyes having identical or very similar characteristicwith regard to neutral affinity and migration are highly compatible withregard to trichromatic performance. Combinations of dyes having goodtrichromatic properties are known for monosulphonated acid dyes. Bycontrast, no such dye mixtures are known to date for disulphonated aciddyes, for example the Nylosan® F dyes from Clariant.

[0005] It is an object of the present invention to provide atrichromatic dyeing process and associated trichromatic dye mixturesconsisting of at least one blue component, at least one yellow componentand at least one red component whereby trichromatic dyeing with goodfastnesses is made possible even for disulphonated acid dyes.

[0006] This object is achieved by a trichromatic dyeing process which ischaracterized in that it comprises using a dye mixture consisting of atleast one blue-dyeing compound of the formula (I)

[0007] where

[0008] A is a hydrogen atom or a discretionary substituent and

[0009] R is a discretionarily substituted alkyl, cycloalkyl or arylradical,

[0010] and of at least one yellow-dyeing compound of the formula (II)

[0011] where

[0012] B is hydrogen; alkyl; hydroxyl-, alkoxy-, alkanoyloxy- orphenoxy-substituted alkyl, aralkyl, cycloalkyl or unsubstituted oralkyl-, halogen-, alkoxy-, nitro-, cyano-, alkoxycarbonyl-, carbamoyl-or sulphamoyl-substituted phenyl,

[0013] R₄ is hydrogen; alkyl of 1-8 carbon atoms which may beinterrupted by oxygen atoms and may be substituted by hydroxyl, acyloxy,alkoxy, cyano, cyclo-alkoxy, aralkoxy or aroxy; unsubstituted orhydroxyl-, chlorine-, hydroxy-alkyl-, chloroalkyl- or alkyl-substitutedcycloalkyl or polycycloalkyl radicals of 5 to 15 carbon atoms; aralkylradicals of 7 to 15 carbon atoms or unsubstituted or chlorine-,hydroxyl-, alkoxy-, alkyl-, hydroxyalkyl- or hydroxy-alkoxy-substitutedphenyl radicals and also alkenyl, pyrrolidonylalkyl and carbonylalkylradicals,

[0014] R₁ is hydrogen; alkyl of 1-8 carbon atoms or hydroxyalkyl of 2 to9 carbon atoms, and

[0015] R₄ and R₁ combine with the nitrogen to form the radical ofpyrrolidine, of piperidine or of morpholine and independently

[0016] R₂ has the same meanings as R₄,

[0017] R₃ has the same meanings as R₁ and

[0018] R₂ and R₃ together have the same meanings as R₄ and R₁ together,

[0019] Y is hydrogen; cyano; chlorine; bromine; methyl sulphone; ethylsulphone; phenyl sulphone; carbalkoxy or —SO₃H,

[0020] Y₁ is hydrogen; chlorine; bromine or —SO₃H,

[0021] Y₂ is hydrogen; chlorine; bromine; methyl; carbalkoxy;2-benzothiazolyl or —SO₃H,

[0022] and where B, R₁ to R₄ and Y to Y₂ together contain at least 2sulphonic acid groups,

[0023] and of at least one red-dyeing compound of the formula (III)

[0024] R₅ is hydrogen; C₁₋₄alkyl or C₂₋₄-hydroxyalkyl,

[0025] R₆ is hydrogen; C₁₋₄alkyl; C₁₋₄alkoxy; —NHCOC₁₋₄alkyl;—NHCOOC₁₋₄alkyl or —NHCONH₂,

[0026] R₇ is hydrogen; halogen; C₁₋₄alkyl or C₁₋₄alkoxy and

[0027] R₈ is hydrogen; C₁₋₄alkyl; C₁₋₄alkoxy or halogen;

[0028] where

[0029] R₉ is chlorine; hydroxyl or NHCN,

[0030] R₁₀ is hydrogen; chlorine or cyano,

[0031] R₁₁ is hydrogen; C₁₋₁₂alkyl; hydroxyl-monosubstituted or-disubstituted C₂₋₈alkyl, phenyl, phenyl(C₁₋₄alkyl) or cyclohexyl and

[0032] R₁₂ is unsubstituted or halogen-substituted,hydroxyl-monosubstituted or -disubstituted, phenyl-substituted,carboxyl-substituted or C₁₋₁₂alkoxy-substituted C₄₋₂₀alkyl;—G—O—C₁₋₁₂alkyl, where G is C₂₋₃alkylene; phenyl or phenyl(C₁₋₃alkyl),whose phenyl ring is unsubstituted or substituted by one to threesubstituents selected from the group consisting of halogen, C₁₋₁₆alkyl,C₂₋₆hydroxyalkyl, C₁₋₆alkoxy, phenoxy and —NHCOCH₃; or is cycionexylwhich is unsubstituted or substituted by one to three C₁₋₄alkyl groups,

[0033] with the proviso that the total number of carbon atoms in R₁₁ andR₁₂ together is at least 8, or

[0034] —NR₁₁R₁₂ is

[0035] and/or of at least one red-dyeing compound of the formula (IV)

[0036] where

[0037] each R₁₃ is independently hydrogen, C₁₋₄alkyl or halogen,

[0038] R₁₄ is hydrogen or substituted or unsubstituted C₁₋₄alkyl,

[0039] R₁₅ independently has the same meanings as R₁₄ or

[0040] R₁₄ and R₁₅ combine to form a cycloaliphatic ring of 5-8 carbonatoms,

[0041] R₁₆ is hydrogen or hydroxyl and

[0042] R₁₇ independently has the same meanings as R₁₆,

[0043] and/or of at least one red-dyeing compound of the formula (V)

[0044] where

[0045] E represents an aromatic, araliphatic, hydroaromatic radical ortwo aromatic radicals,

[0046] Z represents hydrogen or a discretionary substituent exceptsulphonic acid and carboxylic acid groups,

[0047] n represents 1 or 2,

[0048] and at least one anionic and/or nonionic dyeing auxiliary.

[0049] A preferred trichromatic dyeing process comprises, as well as atleast one anionic and/or nonionic dyeing auxiliary, using dye mixturesconsisting of at least one blue-dyeing compound as per the formula (I)where A is a hydrogen atom or a discretionarily substituted alkyl oraryl radical, and at least one yellow-dyeing compound as per the formula(II) where

[0050] B is hydrogen; alkyl; hydroxyl-, alkoxy-, alkanoyloxy orphenoxy-substituted alkyl,

[0051] R₄ is hydrogen or alkyl of 1-8 carbon atoms which may beinterrupted by oxygen atoms and may be substituted by hydroxyl, acyloxy,alkoxy, cyano, cycloalkoxy, aralkoxy or aroxy,

[0052] R₂ is hydrogen; alkyl of 1-8 carbon atoms which may beinterrupted by oxygen atoms and may be aryl radicals of 7 to 15 carbonatoms and

[0053] Y is hydrogen; chlorine; bromine or —SO₃H,

[0054] Y₁ is hydrogen; chlorine; bromine; methyl or —SO₃H,

[0055] Y₂ is hydrogen; chlorine; bromine; methyl or —SO₃H,

[0056] and at least one red-dyeing compound as per the formula (III)

[0057] where

[0058] R₅ is hydrogen or methyl,

[0059] R₆ is hydrogen; methyl; C₁₋₄alkoxy; —NHCOCH₃ or —NHCONH₂,

[0060] R₇ is hydrogen; methyl and

[0061] R₈ is hydrogen; methyl; methoxy and

[0062] where

[0063] R₉ is chlorine; hydroxyl or NHCN,

[0064] R₁₀ is hydrogen; chlorine or cyano,

[0065] R₁₁, is hydrogen; C₁₋₄alkyl; hydroxyl-monosubstituted or-disubstituted C₂₋₄alkyl or phenyl and

[0066] R₁₂ is unsubstituted or phenyl-monosubstituted C₄₋₁₄alkyl;—G1—O—C₆₋₁₂alkyl, where G1 is linear C₂₋₃alkylene; C₆₋₁₆alkyl- orphenoxy-monosubstituted phenyl; phenyl-(C₁₋₂alkyl) whose phenyl ring isunsubstituted or monosubstituted by C₆ ₁₋₄alkyl; or cyclohexylsubstituted by one to three methyl groups,

[0067] and/or at least one red-dyeing compound of the formula (IVa)

[0068] where

[0069] each R′₁₃ is independently hydrogen or a C₁₋₄alkyl group, R₁₄ andR₁₅ have the meanings defined above,

[0070] and/or at least one red-dyeing compound of the formula (Va)

[0071] where

[0072] R₁₈ is hydrogen or substituted or unsubstituted C₁₋₄alkyl,

[0073] R₁₉ independently has the same meanings as R₁₈,

[0074] n is 1 or 2.

[0075] A further likewise preferred trichromatic dyeing processcomprises, as well as at least one anionic and/or nonionic dyeingauxiliary, using dye mixtures whose red component is a mixture of atleast one red component of the formula (III) and at least one redcomponent of the formula (IV).

[0076] A further likewise preferred trichromatic dyeing processcomprises, as well as at least one anionic and/or nonionic dyeingauxiliary, using dye mixtures whose red component is a mixture of atleast one red component of the formula (III) and at least one redcomponent of the formula (V).

[0077] A further likewise preferred trichromatic dyeing processcomprises, as well as at least one anionic and/or nonionic dyeingauxiliary, using dye mixtures whose red component is a mixture of atleast one red component of the formula (IV) and at least one redcomponent of the formula (V).

[0078] A more preferred trichromatic dyeing process comprises, as wellas at least one anionic and/or nonionic dyeing auxiliary, using dyemixtures containing at least one blue-dyeing compound as per the formula(I), where A is a hydrogen atom and R is a discretionarily substitutedaryl radical and at least one yellow-dyeing compound as per the formula(II) where

[0079] B is hydrogen or methyl,

[0080] R₄ is hydrogen or alkyl of 1-4 carbon atoms,

[0081] R₁ is nydrogen or alkyl of 1-4 carbon atoms,

[0082] R₂ is hydrogen; alkyl of 1-4 carbon atoms or aralkyl radicals of7 to 15 carbon atoms,

[0083] R₃ is hydrogen or methyl

[0084] Y is hydrogen or chlorine,

[0085] Y₁ is hydrogen or chlorine,

[0086] Y₂ is hydrogen or —SO₃H,

[0087] and at least one red-dyeing compound as per the formula (III)

[0088] where

[0089] R₅ is hydrogen or methyl,

[0090] R₆ is hydrogen or methyl,

[0091] R₈ is hydrogen or methyl and

[0092] where

[0093] R₉ is chlorine or hydroxyl,

[0094] R₁₁ is hydrogen or methyl and

[0095] R₁₂ is unsubstituted or phenyl-monosubstituted C₄₋₁₄alkyl,

[0096] and at least one red-dyeing compound of the formula (IVb)

[0097] and at least one red-dyeing compound of the formula (Vb)

[0098] where

[0099] R₁₈ is hydrogen or methyl,

[0100] R₁₉ independently has the same meanings as R₁₈.

[0101] It is to be noted that all compounds may also be present in saltform. Useful salts include in particular alkali metal, alkaline earthmetal or ammonium salts or the salts of an organic amine.

[0102] It is likewise to be noted that the alkyl groups can be linear orbranched.

[0103] The individual dyes and their syntheses are described in theliterature.

[0104] Compounds of the formula (I) are prepared according to WO99/5168, compounds of the formula (II) according to DE 2302582,compounds of the formula (III) according to DE 4209261, compounds of theformulae (IV) and (Va) according to DE 5565480 and compounds of theformula (V) according to GB 810246.

[0105] This invention further provides dye mixtures for the trichromaticdyeing or printing of natural or synthetic polyamide fibre material orsuch polyamide-containing material which are used in the above processesaccording to the invention.

[0106] The inventive process for trichromatic dyeing or printing can beapplied to all customary and known dyeing and printing processes, forexample the continuous process, the exhaust process, the foam dyeingprocess and the ink-jet process.

[0107] The composition of the individual dye components in thetrichromatic dye mixture used in the process according to the inventiondepends on the desired hue. For instance, a brown hue preferablyutilizes 55-65% by weight of the yellow component according to theinvention, 20-30% by weight of the red component according to theinvention and 10-20% by weight of the blue component according to theinvention.

[0108] The red component, as described above, can consist of a singlecomponent or of a mixture of different red individual components whichconform to the formulae (III), (IV) and (V). Preference is given todouble and triple combinations. It is to be noted that the components ofthe individual red components of the formulae (III)-(V) can themselvesbe mixtures.

[0109] When a red individual component consisting of only one redcomponent of the formula (III) is used, its fraction should not exceed50% by weight of the trichromatic colour mixture.

[0110] When a red triple mixture consisting of one each of at least onered compound of the formula (III) and at least one red compound of theformula (IV) and at least one red compound of the formula (V), thefraction of the compounds of the formula (III) should not exceed 40% byweight based on the triple red mixture.

[0111] The total amount of dyes in the process according to theinvention is between 0.01 and 15% by weight, preferably between 1 and10% by weight.

[0112] The dye mixtures according to the invention, as well as the dyesand the water, further contain anionic or nonionic dyeing or printingauxiliaries.

[0113] Such auxiliaries are in particular wetting agents, antifoams,levelling agents, thickeners and plasticizers.

[0114] The present invention further provides substrates consisting ofnatural or synthetic polyamide or polyamidic substrates dyed or printedby a dye mixture according to the invention.

[0115] The process according to the invention provides dyeings andprints having a homogeneous hue build-up throughout the entire huespectrum with on-tone exhaustion, with a high bath exhaustion even inthe case of fibres with low saturation and with a high dye build-up onfine fibres, particularly on microfibres.

[0116] The resulting dyeings or prints are notable for very high wetfastnesses, specifically the fastnesses in washing, perspiration andwater. These good wet and fabrication fastnesses, which are in no wayinferior to the fastness level of dyeings and prints with metalcomplexes, are obtained without aftertreatment. With an additionalaftertreatment, these fastnesses are even exceeded.

[0117] These excellent results are provided by metal-free elements whichmeet the current and future ecological requirements of nationalinstitutes and regulations.

[0118] The tables which follow show some example of the individualcomponents of the dye mixtures which are used together with the anionicor nonionic dyeing or printing auxiliary. TABLE 1 EXAMPLES 1-4 Examplesof compounds as per the formula (I)

Ex. R 1

2

3

4

[0119] TABLE 2 EXAMPLES 5-7 Examples of compounds as per the formula(II)

Ex. B R₄ R₁ R₃ 5 —CH₃ —CH₂CH₂CH₂CH₃ —CH₂CH₂CH₂CH₃

6 —CH₃

H

7 —CH₃ —CH₂CH₂CH₂CH₃ —CH₂CH₂CH₂CH₃

[0120] TABLE 3 EXAMPLES 8-13 Examples of compounds as per the formula(III)

Ex. R₁₂ Position of sulpho group 8 —(CH₂)₁₁CH₃ 4 9

4 10 —(CH₂)₁₁CH₃ 3 11

3 12

4 13

4

[0121] TABLE 4 EXAMPLES 14-17 Examples of compounds as per the formula(IV)

Ex. R₁₃ R₁₆ = R₁₇ 14 H H 15 H OH 16 CH₃ OH 17 CI OH

[0122] TABLE 5 EXAMPLES 18-19 Examples of compounds as per the formula(V)

Ex. R₁₈ R₁₉ 18 H H 19 —CH₃ —CH₃

[0123] The use examples hereinbelow serve to illustrate the presentinvention. Parts are by weight and temperatures are in degrees Celsius,unless otherwise indicated.

USE EXAMPLE 1

[0124] A 20 g polyamide fabric is dyed in a liquor ratio of 10:1 withthe following additions: 0.5% of a yellow dye as per Example 5, 0.1% ofa red dye as per Example 13, 0.1% of a red dye as per Example 16, 0.05%of a red dye as per Example 7, 0.15% of a blue dye as per Example 2,1.0% of an anionic oil sulphonate and 1.0 gl of sodium acetate

[0125] The pH is adjusted to 4.5 with acetic acid. The liquor is heatedto 70° C. at 2° C./min and subsequently dyed to 98° C. with 0.8° C./min.This is followed by cooling after 30 min and rinsing on attainment of70° C. Drying without aftertreatment with a fixative provides a levelbrown dyeing possessing high household wash, perspiration and waterfastness.

USE EXAMPLE 2

[0126] A 20 g wool fabric is dyed in a liquor ratio of 20:1 with thefollowing additions: 0.32% of a yellow dye as per Example 5 0.06% of ared dye as per Example 13 0.06% of a red dye as per Example 16 0.06% ofa red dye as per Example 7 0.5% of a blue dye as per Example 2 1.0% ofan anionic oil sulphonate 1.0% of an anionic fatty amine polyglycolether 1.0 g/l of sodium acetate

[0127] The pH is adjusted to 4.5 with acetic acid. The dyeing operationcorresponds to that of Example 1. It provides a grey wool fabric havinggood perspiration and water fastnesses.

USE EXAMPLE 3

[0128] A 20 g 90/10 PA/elastomer blend is dyed and finished similarly toUse Example 1. The dyeing possesses very good wash and perspirationfastnesses.

USE EXAMPLE 4

[0129] A PA carpet is padded to a 100% pick-up with the followingliquor: 2.5 g/l of a yellow dye as per Example 5 0.36 g/l  of a red dyeas per Example 13 0.36 g/l  of a red dye as per Example 16 0.18 g/l  ofa red dye as per Example 7 1.7 g/l of a blue dye as per Example 2 2.0g/l of a polyglycol ether sulphonate 4.0 g/l of a commercially availablethickener based on bean flour ether

[0130] The pH is adjusted to 6 with acetic acid. The carpet is thenprinted with a print paste containing the following components: 20.0g/kg of a commercially available cationic fatty acid alkyl amine 20.0g/kg of a commercially available thickener based on bean flour etherwhose pH has been adjusted to 8 with sodium carbonate.

[0131] The coloured carpet is fixed in saturated steam for 5 min, rinsedand dried. The white/olive-green carpet obtained has very good wetfastnesses.

USE EXAMPLE 5

[0132] Similar to Example 4 except for addition of 3 g/kg of Acid Yellow49 in the print paste. The carpet obtained is olive green with a brightyellow print.

USE EXAMPLE 6

[0133] A PA fabric is printed with the following printing batches: 0.2g/kg of a yellow dye as per Example 5 1.7 g/kg of a blue dye as perExample 2 0.6 g/kg of a red dye as per Example 13 0.6 g/kg of a red dyeas per Example 16 0.3 g/kg of a red dye as per Example 7 10.0 g/kg ofglycol ether 20.0 g/kg of urea 399.3 g/kg of boiling water 500.0 g/kg ofbean flour ether thickener 60.0 g/kg of ammonium sulphate 5.0 g/kg ofdefoamer 1000 g total

[0134] Printing is followed by 30 min of fixing with saturated steam at102° C. and then by rinsing and drying. The print obtained is violet andpossesses high wet fastness.

1. Trichromatic dyeing process for dyeing or printing natural orsynthetic polyamide fibres or such fibres as contain polyamide,characterized in that it comprises using a dye mixture consisting of atleast one blue-dyeing compound of the formula (I)

where A is a hydrogen atom or a discretionary substituent and R is adiscretionarily substituted alkyl, cycloalkyl or aryl radical, and of atleast one yellow-dyeing compound of the formula (II)

where B is hydrogen; alkyl; hydroxyl-, alkoxy-, alkanoyloxy- orphenoxy-substituted alkyl, aralkyl, cycloalkyl or unsubstituted oralkyl-, halogen-, alkoxy-, nitro-, cyano-, alkoxycarbonyl-, carbamoyl-or sulphamoyl-substituted phenyl, R₄ is hydrogen; alkyl of 1-8 carbonatoms which may be interrupted by oxygen atoms and may be substituted byhydroxyl, acyloxy, alkoxy, cyano, cycloalkoxy, aralkoxy or aroxy;unsubstituted or hydroxyl-, chlorine-, hydroxyalkyl-, chloroalkyl- oralkyl-substituted cycloalkyl or polycycloalkyl radicals of 5 to 15carbon atoms, aralkyl radicals of 7 to 15 carbon atoms or unsubstitutedor chlorine-, hydroxyl-, alkoxy-, alkyl-, hydroxyalkyl- orhydroxyalkoxy-substituted phenyl radicals and also alkenyl,pyrrolidonylalkyl and carbonylalkyl radicals, R₁ is hydrogen; alkyl of1-8 carbon atoms or hydroxyalkyl of 2 to 9 carbon atoms, and R₄ and R₁combine with the nitrogen to form the radical of pyrrolidine, ofpiperidine or of morpholine and independently R₂ has the same meaningsas R₄, R₃ has the same meanings as R₁ and R₂ and R₃ together have thesame meanings as R₄ and R₁ together, Y is hydrogen; cyano; chlorine;bromine; methyl sulphone; ethyl sulphone; phenyl sulphone; carbalkoxy or—SO₃H, Y₁ is hydrogen; chlorine; bromine or —SO₃H Y₂ is hydrogen;clorine; bromine; methyl; cabolkoxy; 2-benzothiazolyl or —SO₃H, andwhere B, R₁ to R₄ and Y to Y₂ contain sulphonic acid groups, and of atleast one red-dyeing compound of the formula (III)

R₅ is hydrogen; C₁₋₄alkyl or C₂₋₄-hydroxyalkyl, R₆ is hydrogen;C₁₋₄alkyl; C₁₋₄alkoxy; —NHCOC₁₋₄alkyl; —-NHCOOC₁₋₄alkyl or —NHCONH₂, R₇is hydrogen; halogen; C₁₋₄alkyl or C₁₋₄alkoxy and R₈ is hydrogen;C₁₋₄alkyl; C₁₋₄alkoxy or halogen;

where R₉ is chlorine; hydroxyl or NHCN, R₁₀ is hydrogen; chlorine orcyano, R₁₁ is hydrogen; C₁₋₁₂alkyl; hydroxyl-monosubstituted or-disubstituted C₂₋₈alkyl, phenyl, phenyl(C₁₋₄alkyl) or cyclohexyl andR₁₂ is unsubstituted or halogen-substituted, hydroxyl-monosubstituted or-di-substituted. phenyl-substituted, carboxyl-substituted orC₁₋₂alkoxy-substituted C₄₋₂₀alkyl; —G—O—C₁₋₁₂alkyl, where G isC₂₋₃alkylene; phenyl or phenyl(C₁₋₃alkyl), whose phenyl ring isunsubstituted or substituted by one to three substituents selected fromthe group consisting of halogen, C₁₋₁₆alkyl, C₂₋₆hydroxyalkyl,C₁₋₆alkoxy, phenoxy and —NHCOCH₃; or is cyclohexyl which isunsubstituted or substituted by one to three C₁₋₄alkyl groups, with theproviso that the total number of carbon atoms in R₁₁ and R₁₂ together isat least 8, or

and/or of at least one red-dyeing compound of the formula (IV)

where each R₁₃ is independently hydrogen, C₁₋₄alkyl, halogen, R₁₄ ishydrogen or substituted or unsubstituted C₁₋₄alkyl, R₁₅ independentlyhas the same meanings as R₁₋₄, or R₁₄ and R₁₅ combine to form acycloaliphatic ring of 5-8 carbon atoms, R₁₆ is hydrogen or hydroxyl andR₁₇ independently has the same meanings as R₁₆, and/or at least onered-dyeing compound of the formula (V)

where E represents an aromatic, araliphatic, hydroaromatic radical ortwo aromatic radicals, Z represents hydrogen or a discretionarysubstituent except sulphonic acid and carboxylic acid groups, nrepresents 1 or 2, and at least one anionic and/or nonionic dyeingauxiliary.
 2. Trichromatic dyeing process according to claim 1,characterized in that it comprises using a dye mixture consisting of atleast one blue-dyeing compound as per the formula (I) where A is ahydrogen atom or a discretionarily substituted alkyl or aryl radical,and of at least one yellow-dyeing compound as per the formula (II) whereB is hydrogen; alkyl; hydroxyl-, alkoxy-, alkanoyloxy orphenoxy-substituted alkyl, R₄ is hydrogen or alkyl of 1-8 carbon atomswhich may be interrupted by oxygen atoms and may be substituted byhydroxyl, acyloxy, alkoxy, cyano, cycloalkoxy, aralkoxy or aroxy, R₂ ishydrogen; alkyl of 1-8 carbon atoms which may be interrupted by oxygenatoms and may be aryl radicals of 7 to 15 carbon atoms and Y ishydrogen; chlorine; bromine or —SO₃H, Y₂ is hydrogen; chlorine; bromine;methyl or —SO₃H, and of at least one red-dyeing compound as per theformula (III) where

R₅ is hydrogen or methyl, R₆ is hydrogen; methyl; C₁₋₄alkoxy; —NHCOCH₃or —NHCONH₂, R₇ is hydrogen; methyl and R₈ is hydrogen; methyl; methoxyand

where R₉ is chlorine; hydroxyl or NHCN, R₁₀ is hydrogen; chlorine orcyano, R₁₁ is hydrogen; C₁₋₄alkyl; hydroxyl-monosubstituted or-disubstituted C₂₋₄alkyl; or phenyl and R₁₂ is unsubstituted orphenyl-monosubstituted C₄₋₁₄alkyl; —G1—O—C₆₋₁₂alkyl, where G1 is linearC₂₋₃alkylene; C₆₋₁₆alkyl- or phenoxy-monosubstituted phenyl;phenyl(C₁₋₂alkyl) whose phenyl ring is unsubstituted or monosubstitutedby C₆₋₁₄alkyl; or cyclohexyl substituted by one to three methyl groups,and/or of a red-dyeing compound of the formula (IVb)

and/or of at least one red-dyeing compound of the formula (Va)

where R₁₈ is hydrogen or substituted or unsubstituted C₁₋₄alkyl, R₁₉independently has the same meanings as R₁₈, n is 1 or 2, and at leastone anionic and/or nonionic dyeing auxiliary.
 3. Trichromatic dyeingprocess according to claim 1 or 2, characterized in that it comprisesusing a dyeing mixture consisting of at least one blue-dyeing compoundas per the formula (I), where A is a hydrogen atom and R is adiscretionarily substituted aryl radical and of at least oneyellow-dyeing compound as per the formula (II) where B is hydrogen ormethyl, R₄ is hydrogen or alkyl of 1-4 carbon atoms, R₁ is hydrogen oralkyl of 1-4 carbon atoms, R₂ is hydrogen; alkyl of 1-4 carbon atoms oraralkyl radicals of 7 to 15 carbon atoms, R₃ is hydrogen or methyl Y ishydrogen or chlorine, Y₁ is hydrogen or chlorine, Y₂ is hydrogen or—SO₃H, and of at least one red-dyeing compound as per the formula (III)where

R₅ is hydrogen or methyl, R₆ is hydrogen or methyl, R₈ is hydrogen ormethyl and

where R₉ is chlorine or hydroxyl, R₁₀ is hydrogen or methyl and R₁₂ isunsubstituted or phenyl-monosubstituted C₄₋₁₄alkyl, and of a red-dyeingcompound of the formula (IVb)

and of at least one red-dyeing compound of the formula (Vb)

where R₁₈ is hydrogen or methyl, R₁₉ independently has the same meaningsas R₁₈ and at least one anionic and/or nonionic dyeing auxiliary. 4.Trichromatic dyeing process according to claim 1 or 2, characterized inthat it comprises using a dye mixture consisting of at least one bluecomponent according to claim 1 or 2, and of at least one yellowcomponent from claim 1 or 2 and of a red component which constitutes amixture of at least one compound of the formula (III) and at least onecompound of the formula (IV), and at least one anionic and/or nonionicdyeing auxiliary.
 5. Trichromatic dyeing process according to claim 1 or2, characterized in that it comprises using a dye mixture consisting ofat least one blue component according to claim 1 or 2, and of at leastone yellow component from claim 1 or 2 and of a red component whichconstitutes a mixture of at least one compound of the formula (III) andat least one compound of the formula (V), and at least one anionicand/or nonionic dyeing auxiliary.
 6. Trichromatic dyeing processaccording to claim 1 or 2, characterized in that it comprises using adye mixture consisting of at least one blue component according to claim1 or 2, and of at least one yellow component from claim 1 or 2 and of ared component which constitutes a mixture of at least one compound ofthe formula (IV) and at least one compound of the formula (V), and atleast one anionic and/or nonionic dyeing auxiliary.
 7. Dye mixtures usedin the processes of claims 1-6.
 8. Substrates consisting of natural orsynthetic polyamide or polyamidic substrates dyed or printed by atrichromatic dyeing process as claimed in any of claims 1-6.